Configurable blur active element

[yonzmeer]

This PR comes to make the behavior introduced in #8662 configurable via the viewer constructor options.

When the canvas is clicked, it will not blur the active element if false is provided.

The default value is true so the original behavior remains.

It comes to solve issues #10185 and #9134.

Task list

• find a better name for the viewer options argument

[cesium-concierge]

Thank you so much for the pull request @yonzmeer! I noticed this is your first pull request and I wanted to say welcome to the Cesium community!

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[yonzmeer]

I'm not sure about my naming. this behavior is too specific for me to find a good name.
Would like some help with that (:

[ggetz]

Hi @yonzmeer, can you please send in a Contributor License Agreement? That needs to be signed before we can review anything. Thanks!

[yonzmeer]

Hi @yonzmeer, can you please send in a Contributor License Agreement? That needs to be signed before we can review anything. Thanks!

done

[ggetz]

Thanks @yonzmeer! I have a few comments on the approach:

[ggetz]

Thanks @yonzmeer! I used the example from #9134 to test, and this is working well.